TM 1-1520-238-23
7-494
7.128.
SDC OUTLET PRESSURE SWITCH REMOVAL/INSTALLATION – continued
7.128.6. Installation
a. Install switch (6) on tube valve (7).
(1) Lubricate new packing (13). Use petrolatum
(item 138, App F).
(2) Install packing (13) on switch (6).
(3) Lubricate switch (6) threads. Use damping
fluid (item 69, App F).
(4) Install switch (6) on valve tube (7).
(5) Hold fitting (12). Install switch (6).
(6) Pin white wire (10) to splice SP2 (11).
(7) Pin red wire (8) to splice SP1 (9).
b. Install clamps (1) and (2).
(1) Install two screws (3) through clamps (1) and
(2).
(2) Install two washers (4) and nuts (5).
c. Inspect (QA).
d. Perform pressurized air system maintenance
operational check (TM 1-1520-238-T).
e. Unfold catwalk (para 2.83).
f. Secure access doors T250L, T250R, T290L,
T290R, and L325 (para 2.2).
END OF TASK
M04-2018-4
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